所述方法在以下条件下使用:a）速度分布规则；b） 流体是清洁的或被认为是清洁的水；c） 管道已满；d） 水流稳定。特别涉及螺旋桨式流量计的技术和校准、局部速度的测量和通过速度积分计算流量。

The described method is to be used under the following conditions: a) the velocity distribution is regular; b) the fluid is water which is clean or considered to be clean; c) the conduit is full; d) the flow is steady. Deals in particular with the technology and calibration of propeller-type current-meters, the measurement of local velocities and the calculation of the flow-rate by velocity integration.